Method of making hooped metallic receptacles



F. G. WACKER.

METHOD 0F MAKING HOOPED METALLIC RECEPTACLES.

APPLICATION FILED JULY 26.1919.

1,419,705, Patented June 13, 1922.

lil L M *Y Il ll FREDERICK G. WACKER, OF CHICAGO, ILLINOIS, ASSIGNOR TODETROIT RANGE IBOILER & STEEL BARREL COMPANY, 0F DETROIT, lMICHIGAN, ACORPORA- TION 0F MAINE.

METHOD 0F MAKING HOOPED METALLIC RECEPTACLES.

mimos.

Original application led .Tuly 26, 1916, Serial No. 111,356. Patent No.1,314,445, dated August 26, 1919. Divided and this application filedJuly 26, 1919.V Serial No. 313,448.

To all whom t may concern:

Be it known that I, FREDERICK G. WACKER, a citizen of the United States,and resident of Chicago, in thecounty of Cook and State of Illinois,have invented certain new and useful Improvements in Methods of MakingHooped Metallic Receptacles, of which the following is a specification.

'My invention relates to metallic receptacles such as barrels, casks,drums and the like, and the object thereof is to provide a novel andadvantageous method of applying the :so-called rolling hoop to thesheetmetal body of the receptacle, thereby producing an improved andstronger construction in a most eflicient and economical manner. In `myPatent No. 1,314,445 granted August 26, 1919, of which this applicationis a division, I show and claim structure such as may advantageously bemade by my v method.

In a general way, Ifproceed by slipping over the sheet metal body asuitable rolling hoop, and expanding the body-metal beyond its normalposition and into close contact with the hoop-interior alongcircumferential lines. For what I regard as most advantageous practice,in detail, I form outstanding beads closely fianking the hoop and alsoexpand the body beyond its normal diameter throughout the whole of theintervening hoop-underlying area, so that the body metal, stretched morethan the hoop-or without any stretching of the hoop-makes firm contactwith the overlying interior face of the hoop and so`that, additionally,the flanking beads make pressure-contact with the hoopedges. In mypreferred construction I ernploy as a hoop a sheet-metal band preformedto present an outwardly convexed rib or center-bead flanked bycylindrical flanges, and under these conditions I effect thedisplacement of the central belt of the outwardly-rolled body-metal sothat it is stretched into the concave of the hoop-rib, bringing thebody-metal into close contact nwith the edges of the rib space (i. e.,the inner edges of the hoop flanges). This also furthers theeffectuation of pressure contact of the flanking beads with theborder-edges of the hoop. And further, under the stated conditions, Iprefer to displace 4portions of the hoop flanges together and jointlywith the underlying body metal, to form locallyoutwardly-bulged zones ofcontacting bodyand-hoop portions. The flanking beads and Specificationof Letters Patent. Patented June 13, 1922. i

the outward expansion of the central zone into a hoop-rib and jointdisplacement of zones' of the body and hoop are desirable features of myinvention but are not essential to its broadest aspects.

In the drawings, Fig. 1 is a side elevation of a barrel or drum. showingthe rolling hoops applied; Fig. 2 is a sectional View showing a fragmentof the body and a preferred form of rolling hoop in the first stage ofassemblage; Fig. 3 illustrates a rolling operation, and Fig. 4 shows arolling operation on a different form of hoop.

The body 1 is initially in true cylindrical form, in the preferredconstruction in the making of which I employ my method. Each rollinghoop may preferably be a sheetmetal ring or band preformed in anysuitable way to provide a substantially central rib or rolling-beadportion 2a outwardly conveXed and lying between two cylindrical flanges2". As shown in Fig. 2, each such loop is loosely slipped on thecylindrical body to a proper horizontal position, that is to say, in thepractice of the invention the hoops are of slightly larger diameter thanthe external diameter of the body of the barrel and do not have to bedriven on or shrunk on for self-retention, but on the contrary, amaterial initial looseness of the ring on the cylinder for easyassemblage may be provided for without disadvantage. After' the hoop isin proper horizontal position with relation to the body of the barrel,the bodymaterial is rolled outwardly at two points or lines to form theoutwardly-extending beads v the distended portion or hooped-section oftially-larger hoop is important as an effeci inner tive, certain andeconomical mode of securing the requisite hoop-seating and further thetendency to `draw in the sides of the beads 1a insures the bringing ofsaid beads into firm, pressure-exerting contact with the hoop edges. Thebody material is thusinevitably stretched much more than. is the metalof the hoop, with the result that the associated parts are kept inclose, tight relationship and the distension of the body into thehoop-bead 2a includes the flanges 2b in contact under pressure with thebody metal/vl alon both edges of the flanges. I prefer., furt ermore,when using a sheet-metal hoop, to stretch the hooped-section of thebarrel body to such extent that it carries with it the portionsof thehoopflanges and this joint isplacement of registering zonesl of both thebarrel body and the hoop (namely the zones within the width of flanges2b) numbered 3, is of I-beam construction.

. panded, just outwardly, each beyond its initial circumferentialposition, as shown in Fig. 3`ensures firm, even, extensive seating ofthe hoop on the body. Moreover, this expanding of the barrel body makesa truss or locally bulged construction as shown, which isa verypracticaland efiicient strengthener, as the weight of the barrel in rolling isborne by these rolling hoops and any tendency of flattening of the trussis effectually resisted bythe construction thus provided.

In Fig. 4 I have illustrated the application of my invention to producea modified form of construction wherein `the rolling hooIp,

n this form of metallic receptacle the same beads 1aL are formed in thebarrel body and such body is outwardly extended at 1c bcyond its normalcircumferential position to bear tightly against the base of the I-beam,

' it being understood that such hoop fits the barrel body loosely beforethe body is exas does the hoop 2 already described.

What I claim is:I4 l 1. The method of forming' a metallic barrel androlling hoop thereon which consists in applying to the exterior of thebarrel a lloosely fitting hoop having an outwardly directed*circumferential bead, expanding the body to form circumferentialbeadsat the edges of the hoop, and also expanding the barrel body intothe said hoop bead.

2. The method of forming a metallic barrel and rolling hoop thereonwhich consists in applying to the exterior of the barrel a looselyfitting hoop having an outwardly directed circumferential bead,expanding the body to form circumferential beads at the edges of thehoop, and also expanding the body intermediate said beads against thelinner face of the hoop, and also expanding the barrel body in said hoopbead.

3. The method of forming a metallic barrel and rolling hoop thereonwhich consists in applying to the exterior of the barrel a looselyfittmg hoop having an outwardly directed circumferential bead, expandingthe body to form circumferential beads at the edges of the hoop and alsoexpanding the body intermediate said beads against the inner face of thehoop, and also stretching the metal of the barrel body and expanding itinto the hoop bead so as to exert rtension thereagainst.

X' 4. The method of forming a metallic barrel and rolling hoop thereonwhich consists in applying tothe barrel a loosely fitting hoop,expanding the body to form circumferential beads at the edges of thehoop, and outwardly displacing the body portion that underlies the hoopbeyond its initial circumferential position, stretching it in excess ofany stretchin of the hoop and thereby putting the bo y into firm contactwith the hoop.

5. The method of forming a metallic barrel and rolling hoop thereonwhich consists in applying to the barrel a loosely fitting hoop andforming in said body beads engaging and paralleling the hoop edges andoutwardly displacing the section intermediate said beads beyond itsinitial circumferential position, `stretching it in excess of' anystretching of the hoop -and thereby putting the beads intopressure-exerting contact with the hoop edges.

6. The method of making a metallic barrel and rolling hoop whichconsists in placing on the barrel body a loosely fitting sheet metalhoop, forming outwardly directed beads on the body engaging andparalleling said hoop,and outwardly bulging the section of the bodyintermediate said hoop together with contacting parts of the sheet metalhoop, thereby putting the beads into pressure-exerting contact withedgesyof the hoop.

7. The method of making a cylindrical barrel and rolling hoop whichconsists in placing on the cylindrical Ibodyv a sheet metal hoop memberhaving cylindrical side flanges and anV intervening outwardly directedbead, outwardly expanding the section of the body "that underlies theflanged portions of the bead, and lfurther expanding and forcing acentral' portion of the `expanded part of the body into the hoop bead.

8. The method ofvmaking a cylindrical barrel and rolling hoop\whichconsists in placing on the cylindrical body a sheet metal hoop memberhaving cylindrical side flanges and an intervening outwardly directedbead, expanding the body of the barrel flanking the hoop flanges to formbeads engaging and paralleling the said hoop flanges and outwardlyexpanding the intervening section of the body and the flanged portionsof the bead, forcing a central portion of the expanded part of the bodyinto the hoop bead and locally bulging the zones of body and hoop whichintervene between the hoop-bead and the edge-beads of the body.

' 9. The methodof hooping a sheet metal barrel which consists in looselyapplying the cold hoop, and beading the barrel-body on both sides of thehoop` and stretching the intermediate section of the barrel sufficientlyto bring zones thereof into seating contact with the loosely overlyinghoop and to establish pressure-contact between the bodybeads and thehoop-edges.y

10. The methodof forming a metallic barrel and rolling hoop thereonwhich consists in applying to the exterior of the barrel a looselyfitting hoop having an outwardly directed circumferential bead7 andexpand' ing circumferential portions of the body of the barrel outwardlyout of the plane of such body and against the hoop to form ahoop-bead-engaging distension and a hoopedge-engaging bead.

11. The method of forming a metallic barrel and rolling hoop thereonwhich consist:J in applying to the exterior of the barrel a looselyfitting hoop having an outwardly directed circumferential bead, andforming hoop-edge flanking beads on the body andl expandmg the body ofthe barrel into said hoop bead and displacing the same at such pointoutwardly out of the plane of the remainder of the body.

l2. The method 0f making a barrel with a rolling hoop which consists inplacing on the body a sheet metal hoop having side flanges and anintervening outwardly-directed bead and outwardly expanding that portionof the body-metal which underlies the flanges of the hoop beyond itsinitial circumferential position,l stretching it in excess of anystretching ofthe hoopflanges and expanding a portion'of the body intothe hoop-bead and thereby putting the body-material in firm lcontactwith said hoop-flanges. y

FREDERICK G, WACK-ER.

